Sennheiser Headphones Digital RF Wireless Over-Ear Stereo SRS Bass RS160 Wireless Surround Sound Experience The RS 160 is a two-part system that comes with wireless headphones, powered by a couple of NiMH batteries and a transmitter that connects to your output device. It’s very simple to set up as the whole system is plug and play. The compact and portable transmitter utilises Kleer's uncompressed digital wireless audio transmission. It offers an effective range of 20m (line of sight), and can serve up to four pairs of headphones. Soundwise, the bass delivery is rousing and full-bodied while the closed, snug fit around your ears effectively isolates outside noise. RS160 Key Features - Digital wireless headphone system - Compact portable transmitter - Powerful bass-driven sound - Digital Volume Control with Mute Function Features - Closed, circum-aural digital wireless headphones - Dynamic transducer systems with neodymium magnets for bass-driven audio reproduction - Ergonomic design (adjustable) headband for an excellent and secure fit - Compact portable transmitter with multi-receiver capability (up to 4 people listening to the same audio source) - Digital Volume Control with Mute Function - No set-up required, just plug and play Delivery Includes: - HDR 160 headphone - TX 160 transmitter - Multi-country charger - Charging cable - Detachable audio cable - 2 AAA NiMH rechargeable batteries - Instruction manuals Technical Data - System Requirements - Modulation: MSK Digital - Carrier frequencies: 2.4 - 2.48GHz - Range: approx. 20m in the open area - Rated Input: 100 - 240V, 0.2A, 50/60Hz Technical Data - Transmitter - Audio input: 3.5mm stereo - Power consumption: < 0.3W - Power supply: 1) 5V DC, 500mA - Power supply: 2) 2 Alkali-Akkus Type AA (1.5V) - Signal-to-noise ratio: 85dBA (0.5Vrms, 1kHz) - Operating time: approx. 24 hours - Weight: approx. 226g (without batteries) - Dimensions: 8.7cm x 9.7cm x 2.7cm Technical Data - Headphones - Transducer principle: closed, dynamic - Ear coupling: circumaural - Sound pressure level (SPL): 106dB - THD, total harmonic distortion: < 0.5% (1kHz, 100dB SPL) - Frequency response: 18Hz - 21000Hz - Impedance: 32 Ohms - Charging time: approx. 16 hours - Power supply: 2 NiMH-Akkus Type AAA, 1.2V, 600mAh - Operating time: approx. 24 hours - Weight: approx. 226g (without batteries) Technical Data - Power Supply - Rated Input: 100 - 240V, 0.2A, 50/60Hz - Rated Output: 5V DC, 500mA - Operating temperature: 0 °C to 40 °C / 32 °F to 104 °F